package com.zsx.demo;

import java.util.Scanner;

/**
 * 〈华为练习1〉
 *
 * @author zhangsixian
 * @create 2021/6/10
 * @since 1.0.0
 */
public class Test1 {
    public static void main(String[] args) {
        //输入
        Scanner s = new Scanner(System.in);
        while (s.hasNext()){
            int a = s.nextInt();
            int b = s.nextInt();
            if (a == 0 && b == 0){
                break;
            }
            System.out.println(a + b);
        }
    }
}
